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Boundary effect on specific fracture energy of concrete

หน่วยงาน Central Queensland University, Australia

รายละเอียด

ชื่อเรื่อง : Boundary effect on specific fracture energy of concrete
นักวิจัย : Duan, Kai. , Hu, X. Z. , Wittmann, F. H.
คำค้น : Strategic basic research. , 860607 Plastic Products (incl. Construction Materials) , 860699 Industrial Chemicals and Related Products not elsewhere classified. , 090503 Construction Materials. , 091308 Solid Mechanics. , 091599 Interdisciplinary Engineering not elsewhere classified. , Concrete. , Fracture mechanics. , Building materials. , Boundary effect -- Size effect -- Fracture energy -- Fracture process zone (FPZ) -- FPZ height
หน่วยงาน : Central Queensland University, Australia
ผู้ร่วมงาน : -
ปีพิมพ์ : 2547
อ้างอิง : http://hdl.cqu.edu.au/10018/40064 , cqu:5108
ที่มา : Duan, K, Hu, X & Wittmann, F 2004, 'Boundary effect on specific fracture energy of concrete' in Li, V.C. et al (eds.) Fracture Mechanics of Concrete Structures. Vail, Colorado, USA, April 12-16, 2004, pp. 205 -212.
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Fracture Mechanics of Concrete Structures, held Vail, Colorado, USA, April 12-16, 2004. USA. : International Association of Fracture Mechanics of Concrete and Concrete Structures, 2004. p. 205-212 8 pages Refereed 0870311352 , ACQUIRE [electronic resource] : Central Queensland University Institutional Repository.
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

The influence of specimen back-face boundary on the shape and size of the crack-tip fracture process zone during crack growth is related to the fracture energy distribution along the crack path. The governing mechanism responsible for the size effect on the specific fracture energy of concrete is the height variation of the crack-tip fracture process zone. Such a height variation exists in the boundary zone where the development of the crack-tip fracture process zone is limited due to the confined space and sharp stress gradient. The reduction in the fracture process zone height leads to a decreasing specific fracture energy distribution along the crack path in the back-face boundary region. The adhesive thickness effect on the critical energy release rate of the adhesive joint sandwiched between two non-yielding substrates and the un-cracked ligament effect on the large scale yielding of polymers and metals provide further proof to the relationship between the height variation of the crack-tip plastic zone and the specific fracture energy.

บรรณานุกรม :
Duan, Kai. , Hu, X. Z. , Wittmann, F. H. . (2547). Boundary effect on specific fracture energy of concrete.
    กรุงเทพมหานคร : Central Queensland University, Australia.
Duan, Kai. , Hu, X. Z. , Wittmann, F. H. . 2547. "Boundary effect on specific fracture energy of concrete".
    กรุงเทพมหานคร : Central Queensland University, Australia.
Duan, Kai. , Hu, X. Z. , Wittmann, F. H. . "Boundary effect on specific fracture energy of concrete."
    กรุงเทพมหานคร : Central Queensland University, Australia, 2547. Print.
Duan, Kai. , Hu, X. Z. , Wittmann, F. H. . Boundary effect on specific fracture energy of concrete. กรุงเทพมหานคร : Central Queensland University, Australia; 2547.