The Weibull modulus, often denoted as \( m \), is a key parameter in the Weibull distribution, which is commonly used to describe the variability of materials' strengths and failure times. It quantifies the degree of variation in the strength of a material: - A low Weibull modulus (e.g., \( m < 1 \)) indicates a wide spread of strength values and a higher chance of failure, suggesting that some samples may exhibit much lower strength than others.
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