Study of calculation method of pure mode II stress intensity factor of fine-grained concrete using different numerical models

• Autorzy: Zhou Changlin , Peng Bo , Deng An , Gao Xiaofeng , Li Yaojia , Zhou Lei , Zhu Zheming

Identyfikatory

DOI

10.15632/jtam-pl/133519

• Języki publikacji: EN

Abstrakty

EN

Measuring and calculating methods of critical stress intensity factors (SIFs) have become hot topics which attracted large attention recently. In this work, anti-symmetrical four-point bending tests of cracked fine-grained concrete specimens were conducted experimentally and numerically by using a computer-controlled universal testing machine and ABAQUS code. A comparative study of the calculation method of pure mode II stress intensity factor of a fine-grained concrete was performed by utilizing the conventional finite element method (FEM) in two and three dimensions as well as the extended finite element method (XFEM) in three dimensions. The results show that in three-dimensional models, the crack mode is closest to the pure mode II at the center of specimen thickness. Pure mode II stress intensity factors obtained by SEAM2D and XFEM3D are 1.013 and 1.0617 times that by SEAM3D, respectively. Pure mode II stress intensity factors of the fine-grained concrete obtained by the conventional FEM are more stable than that by XFEM. The number of mesh circles has slight influence on the calculation results of pure mode II stress intensity factor.

Słowa kluczowe

EN

fine-grained concrete; critical stress intensity factor; J-integral; anti-symmetrical four-point bending; FEM; XFEM

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2021
• Tom: Vol. 59 nr 2
• Strony: 251--264
• Opis fizyczny: Bibliogr. 23 poz., rys., tab.

Twórcy

autor

Zhou Changlin

• Chengdu Surveying Geotechnical Research Institute Co., Ltd. of MCC, Chengdu, China
• State Key Laboratory of Hydraulics and Mountain River Engineering, School of Architecture and Environment, Sichuan University, Chengdu, China
• Key Laboratory of Deep Underground Science and Engineering (Ministry of Education), School of Architecture and Environment, Sichuan University, Chengdu, China

autor

Peng Bo

• Chengdu Surveying Geotechnical Research Institute Co., Ltd. of MCC, Chengdu, China

autor

Deng An

• Chengdu Surveying Geotechnical Research Institute Co., Ltd. of MCC, Chengdu, China

autor

Gao Xiaofeng

• Chengdu Surveying Geotechnical Research Institute Co., Ltd. of MCC, Chengdu, China

autor

Li Yaojia

• Chengdu Surveying Geotechnical Research Institute Co., Ltd. of MCC, Chengdu, China

autor

Zhou Lei

• State Key Laboratory of Hydraulics and Mountain River Engineering, School of Architecture and Environment, Sichuan University, Chengdu, China
• Key Laboratory of Deep Underground Science and Engineering (Ministry of Education), School of Architecture and Environment, Sichuan University, Chengdu, China

autor

Zhu Zheming

• State Key Laboratory of Hydraulics and Mountain River Engineering, School of Architecture and Environment, Sichuan University, Chengdu, China
• Key Laboratory of Deep Underground Science and Engineering (Ministry of Education), School of Architecture and Environment, Sichuan University, Chengdu, China

Bibliografia

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Uwagi

„Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).”