相关题目
a partial fracture or complete break in the material.
a damaged area which is pushed in, with respect to its usual contour. There is no cross-sectional area change in the material, area edges are smooth.
A small decrease of material due to a knock etc. at the edge of a member or skin.
Any twisting, bending or permanent strain which results in misalignment or change of shape. May be caused by impact from a foreign object, but usually results from vibration or movement of adjacent attached components. This group includes bending, buckling, deformation, imbalance, misalignment, pinching, and twisting.
The destruction of metal by chemical or electro-chemical effect. Rust is oxidation or corrosion of metallic alloy part containing ferrous materials.
A damaged area which is pushed in or folded back on itself. The edges are sharp or well specified lines or ridges.
a damage area of all sizes which causes change in a cross-sectional area because of scuffing, rubbing, scraping or other surface erosion. It is usually rough and irregular.
when a separation of materials occurs due to an adhesive failure.
when the separation of plies occurs in a multi-laminate material. This can be caused by the material being hit - Impact Delamination, or when there is a resin failure for any other reason.
Surface damage at the interface between elements of the joints resulting from very small angular or linear movements. Evidence of fretting is usually the production of fine black powder staining.
