Fracture Mechanics of aV-peel Adhesion Test – Transition from a Bending Plate to a Stretching Membrane

Fracture Mechanics of aV-peel Adhesion Test – Transition from a Bending Plate to a Stretching Membrane
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DOI:
10.1080/00218469908009555
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发表时间:
1999-07
影响因子:
2.2
通讯作者:
K. Wan
K. Wan
中科院分区:
材料科学3区
文献类型:
--
作者:
K. Wan

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本文提出了一种线弹性解,用于薄膜与刚性基体的V形剥离附着力试验。讨论了刚性板状涂层在纯弯曲、半柔性薄膜在弯曲和拉伸混合作用下以及柔性膜状薄膜在纯拉伸作用下的力学响应。对于发生分层,机械能释放速率被示出为G = X(Fw 0/2bl),其中X是从板状盘的3/2到薄柔性膜的3/4变化的数值常数。
Abstract A linear elastic solution is proposed for a “V-peel” adhesion test for a thin film adhered to a rigid substrate. The mechanical responses of a stiff plate-like coating under pure bending, a semi-flexible film under mixed bending and stretching, and a flexible membrane-like film under pure stretching are discussed. For delamination to occur, the mechanical energy release rate is shown to be G = χ(Fw 0/2bl) with χ a numerical constant varying from 3/2 for a plate-like disc to 3/4 for a thin flexible membrane.