含能材料2025，Vol.33Issue(8)：860-866,7.DOI:10.11943/CJEM2025074
基于原位显微CT的粘接界面细观损伤演化及变形场分析
Analysis of Meso-damage Evolution and Deformation Fields at Adhesive Interfaces Based on In-situ Micro-CT
王玉峰 1李高春 1李金飞 1竺子翔 2袁茂德 1李旭 3李永强4
作者信息
- 1. 海军航空大学,山东 烟台 264000
- 2. 92706部队,浙江 宁波 315000
- 3. 91115部队,浙江 舟山 316000
- 4. 海军潜艇学院,山东 青岛 266000
- 折叠
摘要
Abstract
The adhesive interface of solid rocket motors is a weak zone prone to interfacial debonding and cohesive failure.Ana-lyzing the meso-scale damage evolution process of adhesive interfaces is fundamental for motor failure assessment.Using an in-situ loading device and a high-resolution micro-CT system,in-situ scanning imaging tests were conducted on the adhesive in-terface of insulation layer/liner/propellant.The internal three-dimensional micro-digital images were obtained,and the meso-damage modes and evolution processes were analyzed.The digital volume correlation(DVC)method was employed to calculate the deformation fields of the adhesive interface under in-situ tensile conditions.The results show that under external loading,the deformation near the liner/propellant interface is greater than that in other regions.When the external strain reaches 6%,microvoids form due to uneven deformation between particles and the matrix,leading to particle-matrix debonding.At an external strain of 20%,microvoids coalescence causes interfacial damage and failure.The DVC method enabled the calculation of internal displacement and strain fields of the adhesive interface,revealing the deformation characteristics and strain distribu-tion in the tensile process.The area near the liner/propellant interface is identified as the strain concentration zone in the tensile process and the primary site of damage initiation.关键词
显微CT/粘接界面/细观损伤演化/DVC方法Key words
micro-CT/adhesive interface/meso-damage evolution/DVC method分类
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王玉峰,李高春,李金飞,竺子翔,袁茂德,李旭,李永强..基于原位显微CT的粘接界面细观损伤演化及变形场分析[J].含能材料,2025,33(8):860-866,7.
