Acoustic Response and Micro-Damage Mechanism of Fiber Composite Materials under Mode-II Delamination
ZHOU Wei** , LV Zhi-Hui, WANG Ya-Rui, LIU Ran, CHEN Wei-Ye, LI Xiao-Tong
College of Quality and Technical Supervision, Hebei University, Baoding 071002
Abstract ：Realizing the accurate characterization for the dynamic damage process is a great challenge. Here we carry out testing simultaneously for dynamic monitoring and acoustic emission (AE) statistical analysis towards fiber composites under mode-II delamination damage. The load curve, AE relative energy, amplitude distribution, and amplitude spectrum are obtained and the delamination damage mechanism of the composites is investigated by the microscopic observation of a fractured specimen. The results show that the micro-damage accumulation around the crack tip region has a great effect on the evolutionary process of delamination. AE characteristics and amplitude spectrum represent the damage and the physical mechanism originating from the hierarchical microstructure. Our finding provides a novel and feasible strategy to simultaneously evaluate the dynamic response and micro-damage mechanism for fiber composites.
收稿日期: 2015-01-04
出版日期: 2015-04-30
:
62.20.mm
(Fracture)
81.05.Lg
(Polymers and plastics; rubber; synthetic and natural fibers; organometallic and organic materials)
[1] Thomas M H, Dharmaraj M and James E L 2005 J. Sol. Energy Eng. 127 544 2006 Compos. Struct. 74 332 2013 Chin. Phys. Lett. 30 016203 2013 Int. J. Damage Mech. 22 1161 2012 Int. J. Solids Struct. 49 2460 2011 Mater. Des. 32 3059 2015 Comput. Mater. Sci. 96 185 2000 Compos. Sci. Technol. 60 1879 2002 Compos. Sci. Technol. 62 679 2001 Compos. Sci. Technol. 61 1413 1996 Compos. Sci. Technol. 56 451 2004 Int. J. Solids Struct. 41 2977 2007 Eng. Fract. Mech. 74 1665 1977 Eng. Fract. Mech. 9 371 2009 Compos. Struct. 89 235 2012 Compos. Sci. Technol. 72 145 2012 J. Compos. Mater. 46 291 2014 J. Compos. Mater. 48 2175 2015 J. Reinf. Plast. Compos. 34 84 2004 Compos. Part B 35 563 Compos. Part B 66 13152010 J. Compos. Mater. 44 793 2003 Compos. Part B 34 459 2013 Struct. Health Monit. 12 126 2014 Arab. J. Sci. Eng. 39 1325 2014 J. Reinf. Plast. Compos. 33 1767 2012 J. Mater. Sci.: Mater. Med. 23 217
[1]
.
[2]
.
[3]
.
[4]
.
[5]
.
[6]
.
[7]
CHEN Qian-Yi;LIU Kai-Xin;**
. A Void Growth Model Considering the Bauschinger Effect and Its Application to Spall Fracture
[8]
WANG Bao-Tian;ZHANG Ping**
. Ideal Strengths and Bonding Properties of PuO2 under Tension
[9]
LIU Zhao-Long;HU Hai-Yun;FAN Tian-You;XING Xiu-San. Nucleation of Micro Crack for Brittle Fracture in Magnetic Field
[10]
RONG Ji-Li;WANG Xi;CAO Mao-Sheng;XU Tian-Fu. Dynamic Fracture Toughness and Failure Mechanisms of ZnO Whiskers Secondary Reinforced Composites
[11]
RONG Ji-Li;WANG Xi;CAO Mao-Sheng;WANG Da-Wei;ZHOU Wei;XU Tian-Fu. Dynamic Tensile Behavior and Fracture Mechanism of Polymer Composites Embedded with Tetraneedle-Shaped ZnO Nanowhiskers
[12]
.
2015, Vol. 32 
