262 lines
7.0 KiB
HTML
262 lines
7.0 KiB
HTML
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Joint Stress Calculator | Albert Karaca</title>
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<style>
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:root {
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--bg: #0c0c0c;
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--fg: #e0e0e0;
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--accent: #ff3333;
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--grid: #333333;
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--mono: "JetBrains Mono", "Courier New", monospace;
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}
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* { box-sizing: border-box; }
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body {
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background-color: var(--bg);
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color: var(--fg);
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font-family: var(--mono);
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margin: 0;
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padding: 2rem;
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line-height: 1.4;
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}
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header {
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border-bottom: 2px solid var(--accent);
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margin-bottom: 2rem;
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padding-bottom: 1rem;
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}
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h1 {
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font-size: 1.5rem;
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text-transform: uppercase;
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letter-spacing: 0.1em;
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margin: 0;
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}
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.subtitle {
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font-size: 0.8rem;
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color: #888;
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margin-top: 0.5rem;
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}
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.grid-container {
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display: grid;
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grid-template-columns: 1fr 1fr;
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gap: 2rem;
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max-width: 900px;
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margin: 0 auto;
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}
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.panel {
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border: 1px solid var(--grid);
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padding: 1.5rem;
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position: relative;
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}
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.panel::before {
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content: "";
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position: absolute;
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top: 0; left: 0; right: 0; height: 1px;
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background: repeating-linear-gradient(90deg, var(--accent), var(--accent) 2px, transparent 2px, transparent 10px);
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}
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label {
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display: block;
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font-size: 0.75rem;
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text-transform: uppercase;
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margin-bottom: 0.5rem;
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color: #aaa;
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}
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input[type="number"] {
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width: 100%;
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background: transparent;
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border: none;
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border-bottom: 1px solid var(--grid);
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color: var(--fg);
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font-family: var(--mono);
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font-size: 1.1rem;
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padding: 0.5rem 0;
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margin-bottom: 1.5rem;
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outline: none;
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}
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input[type="number"]:focus {
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border-bottom-color: var(--accent);
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}
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.result-row {
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display: flex;
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justify-content: space-between;
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border-bottom: 1px dashed var(--grid);
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padding: 0.75rem 0;
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font-size: 0.9rem;
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}
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.result-label { color: #888; }
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.result-value { font-weight: bold; }
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.status-ok { color: #4caf50; }
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.status-warn { color: #ffeb3b; }
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.status-fail { color: var(--accent); animation: blink 1s infinite; }
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@keyframes blink { 50% { opacity: 0.5; } }
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.controls {
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margin-top: 2rem;
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text-align: center;
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}
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button {
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background: transparent;
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border: 1px solid var(--accent);
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color: var(--accent);
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font-family: var(--mono);
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padding: 0.75rem 2rem;
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cursor: pointer;
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text-transform: uppercase;
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transition: all 0.2s;
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}
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button:hover {
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background: var(--accent);
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color: var(--bg);
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}
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.nav-header {
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display: flex;
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justify-content: space-between;
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align-items: center;
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margin-bottom: 2rem;
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}
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nav a {
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color: #888;
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text-decoration: none;
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font-size: 0.8rem;
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margin-left: 1.5rem;
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text-transform: uppercase;
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}
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nav a:hover { color: var(--accent); }
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@media (max-width: 600px) {
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.grid-container { grid-template-columns: 1fr; }
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}
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</style>
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</head>
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<body>
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<header>
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<div class="nav-header">
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<h1>Joint Stress Calculator</h1>
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<nav>
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<a href="/">Home</a>
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<a href="/prevention-protocol.html">Protocol</a>
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<a href="/films/prevention-protocol/">Film</a>
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</nav>
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</div>
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<div class="subtitle">NDS Douglas Fir-Larch Select Structural | Real-Time Load Analysis</div>
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</header>
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<main class="grid-container">
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<section class="panel inputs">
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<form id="calc-form">
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<label>Member Width (w)</label>
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<input type="number" id="width" step="0.1" value="3.5" placeholder="inches">
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<label>Member Thickness (t)</label>
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<input type="number" id="thickness" step="0.1" value="3.5" placeholder="inches">
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<label>Span Length (L)</label>
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<input type="number" id="span" step="1" value="96" placeholder="inches">
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<label>Applied Load (P)</label>
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<input type="number" id="load" step="10" value="1200" placeholder="lbs">
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<label style="color: var(--accent)">Safety Factor Target</label>
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<input type="number" id="sf-target" step="0.1" value="1.5" readonly>
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</form>
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</section>
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<section class="panel outputs">
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<div id="results-display">
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<div class="result-row">
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<span class="result-label">Moment of Inertia (I)</span>
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<span class="result-value" id="val-i">0.00 in⁴</span>
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</div>
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<div class="result-row">
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<span class="result-label">Section Modulus (S)</span>
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<span class="result-value" id="val-s">0.00 in³</span>
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</div>
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<div class="result-row">
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<span class="result-label">Max Bending Moment (M)</span>
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<span class="result-value" id="val-m">0.00 lb-in</span>
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</div>
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<div class="result-row">
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<span class="result-label">Bending Stress (σ)</span>
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<span class="result-value" id="val-sigma">0.00 psi</span>
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</div>
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<div class="result-row">
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<span class="result-label">Material Limit (Fb)</span>
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<span class="result-value">1,500 psi</span>
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</div>
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<div class="result-row">
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<span class="result-label">Safety Factor (n)</span>
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<span class="result-value" id="val-n">0.00</span>
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</div>
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<div class="result-row" style="border:none; margin-top:1rem;">
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<span class="result-label">STRUCTURAL STATUS</span>
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<span class="result-value" id="status-text">AWAITING INPUT</span>
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</div>
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</div>
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<div class="controls">
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<button onclick="resetDefaults()">Reset Baseline</button>
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</div>
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</section>
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</main>
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<script>
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// CONSTANTS: NDS Douglas Fir-Larch Select Structural
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const F_BENDING = 1500; // psi
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const E_MODULUS = 1900000; // psi
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const SF_TARGET = 1.5;
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function calculate() {
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const w = parseFloat(document.getElementById('width').value) || 0;
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const t = parseFloat(document.getElementById('thickness').value) || 0;
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const L = parseFloat(document.getElementById('span').value) || 0;
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const P = parseFloat(document.getElementById('load').value) || 0;
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if (w === 0 || t === 0) return;
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// Section Properties
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const I = (w * Math.pow(t, 3)) / 12;
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const S = I / (t / 2);
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// Loading (Center Point Load on Simple Span)
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const M_max = (P * L) / 4;
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// Stresses
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const sigma = M_max / S;
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const n = F_BENDING / sigma;
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// Render
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document.getElementById('val-i').textContent = I.toFixed(2) + " in⁴";
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document.getElementById('val-s').textContent = S.toFixed(2) + " in³";
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document.getElementById('val-m').textContent = M_max.toFixed(0) + " lb-in";
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document.getElementById('val-sigma').textContent = sigma.toFixed(1) + " psi";
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document.getElementById('val-n').textContent = n.toFixed(2);
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const statusEl = document.getElementById('status-text');
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if (sigma > F_BENDING) {
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statusEl.textContent = "CRITICAL FAILURE";
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statusEl.className = "result-value status-fail";
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} else if (n < SF_TARGET) {
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statusEl.textContent = "UNSAFE";
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statusEl.className = "result-value status-warn";
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} else {
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statusEl.textContent = "COMPLIANT";
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statusEl.className = "result-value status-ok";
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}
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}
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function resetDefaults() {
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document.getElementById('width').value = 3.5;
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document.getElementById('thickness').value = 3.5;
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document.getElementById('span').value = 96;
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document.getElementById('load').value = 1200;
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calculate();
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}
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document.querySelectorAll('input').forEach(el => {
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el.addEventListener('input', calculate);
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});
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calculate();
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</script>
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</body>
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</html>
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