A comparison of quasi-static indentation and low-velocity impact on composite overwrapped pressure vessels

被引：20

作者：

Allen, Trevor ^{[1
]}

Ahmed, Sharif ^{[1
]}

Hepples, Warren ^{[1
]}

Reed, Philippa A. ^{[1
]}

Sinclair, Ian ^{[1
]}

Spearing, Mark ^{[1
]}

机构：

[1] Univ Southampton, Fac Engn & Environm, Southampton, Hants, England

来源：

JOURNAL OF COMPOSITE MATERIALS | 2018年 / 52卷 / 29期

基金：

英国工程与自然科学研究理事会;

关键词：

Hybrid structures; low-velocity impact; quasi-static indentation; computed tomography; DAMAGE; CFRP; THICKNESS; MASS;

D O I：

10.1177/0021998318774401

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

The equivalence of quasi-static indentation and low-velocity impact loading regimes has been assessed for composite overwrapped pressure vessels. Test specimens were assessed in detail in terms of the force-displacement response, and micro-focus computed tomography was used for qualitative and quantitative assessment of the associated damage to the constituent materials/interfaces. The results show that the force-displacement response follows an essentially similar pattern between the two loading regimes (within 10% for all cases). Quantitative assessment of the projected composite damage area and permanent deformation of the aluminium substrate as a function of peak indentor displacement also showed a high degree of equivalence between the loading regimes. It is concluded that quasi-static indentation represents a usable analogue for mechanistic assessment of low-velocity impact damage in the tested composite overwrapped pressure vessels.

引用

页码：4051 / 4060

页数：10

共 23 条

[11] Energy-based approach to impact damage in CFRP laminates [J].