Evaluating Damage with Digital Image Correlation: C. Applications to Composite Materials

摘要: The present chapter is devoted to the evaluation of damage with digital image correlation (DIC). Applications will focus on composite materials. latter ones are designed accommodate microcracks through suited microstructures. As such, they constitute a natural class materials for which (or rather damages) an essential feature their mechanical behavior. discussed in previous (addressing detection physical damage), DIC can reveal elementary mechanisms (e.g., dense distribution microcracks, crack branching along weak interfaces, progressive debonding and subsequent pullout or delamination). It also be shown that laws identified help from tests imaged at different stages loading. followed strategy seen as reminiscent one was used dedicated 1D (i.e., beam like) geometries (from damage). Here, it necessary couple finite element models. benefit addition law, full validation naturally offered highly redundant piece information contained measured displacement fields.