期刊
MATERIALS CHARACTERIZATION
卷 118, 期 -, 页码 206-211出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.matchar.2016.05.022
关键词
Curculio longinasus; Rostrum; Nanoindentation; Young's modulus; Hardness
类别
资金
- Office of Naval Research (ONR) [N00014-10-1-0350]
- Division Of Environmental Biology
- Direct For Biological Sciences [1155984] Funding Source: National Science Foundation
The rostrum is an extension of the cuticle of the head of weevils (Coleoptera: Curculionidae) and is often used to bore holes for oviposition (the process of laying eggs) into host plant tissue where larval development occurs. In members of the genus Curculio Linnaeus, 1758, the rostrum is long, slender, and strongly curved, but is nevertheless used to excavate straight bore-holes in the fruit of various host plants, through significant deformation of this structure. In this study, scanning electron microscopy (SEM) was used to examine the rostrum of Curculio longinasus Chittenden, 1927, leading to a microstructural model that describes its deformation behavior. Specifically, we used the continuous stiffness measurement (CSM) technique in nanoindentation to measure the Young's modulus and hardness of rostrum. The values of Young's modulus and hardness for the endocuticle were measured to be 8.91 +/- 0.93 GPa and 558 +/- 60 MPa, respectively. These results are critical for generating accurate finite element models of the head's mechanical behavior while it undergoes deformation. (C) 2016 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据