Impact Strength vs. Flexural Strength

Flexural strength is a measure of a material’s resistance to deformation under load, also known as stiffness. Flexible materials will have lower flexural strengths than rigid materials. Impact strength is a measure of a material’s ability to absorb shock and impact energy without breaking and is a component of a material’s toughness. A combination of high flexural strength and high impact strength is common amongst engineering grade plastics.

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