PMID- 36234375
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20221019
IS  - 1996-1944 (Print)
IS  - 1996-1944 (Electronic)
IS  - 1996-1944 (Linking)
VI  - 15
IP  - 19
DP  - 2022 Oct 10
TI  - Investigation of Biaxial Properties of CFRP with the Novel-Designed Cruciform 
      Specimens.
LID - 10.3390/ma15197034 [doi]
LID - 7034
AB  - The biaxial loading properties of carbon-fiber-reinforced polymer (CFRP) are 
      critical for evaluating the performance of composite structures under the complex 
      stress state. There are currently no standardized specimens for the CFRP biaxial 
      experiments. This work developed a new design criterion for the cruciform 
      specimen coupled with the Hashin criterion. The finite element analysis was 
      conducted to investigate the effect of geometric parameters on the stress 
      distribution in the test area. The embedded continuous laying method (ECLM) was 
      proposed to achieve the thinning of the center of the test region without 
      introducing defects. The manufacturing quality of the cruciform specimens was 
      verified by the ultrasonic C-scanning test. The biaxial test platform consisting 
      of the biaxial loading system, digital image correlation (DIC) system, strain 
      electrical measurement system, and acoustic emission detection system was 
      constructed. The biaxial tensile tests under different biaxial loading ratios 
      were conducted. The results showed that the biaxial failure efficiently occurred 
      in the test area of the cruciform specimens designed and manufactured in this 
      paper. The failure modes and morphology were characterized using 
      macro/microscopic experimental techniques. The biaxial failure envelope was 
      obtained. The results can be used to guide the design of composite structures 
      under biaxial stress.
FAU - Zhang, Xiaowen
AU  - Zhang X
AD  - School of Materials Science and Engineering, Dalian University of Technology, 
      Dalian 116024, China.
FAU - Zhu, Haiyang
AU  - Zhu H
AD  - National Key Laboratory of Combustion, Thermo-Structure and Flow, The 41st 
      Institute of the Fourth Academy of CASC, Xi'an 710025, China.
FAU - Lv, Zhixing
AU  - Lv Z
AD  - China Safety Technology Research Academy, Beijing 100053, China.
FAU - Zhao, Xiangrun
AU  - Zhao X
AD  - Xi'an North Qinghua Electromechanical Co., Ltd., Xi'an 710025, China.
FAU - Wang, Junwei
AU  - Wang J
AD  - Dalian Yuchen High Tech Material Co., Ltd., Dalian 116023, China.
FAU - Wang, Qi
AU  - Wang Q
AUID- ORCID: 0000-0001-8482-6384
AD  - School of Electrical and Electronic Engineering, Nanyang Technological 
      University, 50 Nanyang Avenue, Singapore 639798, Singapore.
LA  - eng
GR  - 2021YFE0115400/Ministry of Science and Technology of the People's Republic of 
      China/
PT  - Journal Article
DEP - 20221010
PL  - Switzerland
TA  - Materials (Basel)
JT  - Materials (Basel, Switzerland)
JID - 101555929
PMC - PMC9572522
OTO - NOTNLM
OT  - biaxial testing
OT  - carbon-fiber-reinforced polymer
OT  - failure analysis
OT  - finite element analysis
COIS- The authors declare no conflict of interest.
EDAT- 2022/10/15 06:00
MHDA- 2022/10/15 06:01
PMCR- 2022/10/10
CRDT- 2022/10/14 02:22
PHST- 2022/08/05 00:00 [received]
PHST- 2022/08/30 00:00 [revised]
PHST- 2022/09/14 00:00 [accepted]
PHST- 2022/10/14 02:22 [entrez]
PHST- 2022/10/15 06:00 [pubmed]
PHST- 2022/10/15 06:01 [medline]
PHST- 2022/10/10 00:00 [pmc-release]
AID - ma15197034 [pii]
AID - materials-15-07034 [pii]
AID - 10.3390/ma15197034 [doi]
PST - epublish
SO  - Materials (Basel). 2022 Oct 10;15(19):7034. doi: 10.3390/ma15197034.