|Table of Contents|

Strain rate effect on mechanical properties of concrete(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2012年02期
Page:
82-86
Research Field:
Publishing date:

Info

Title:
Strain rate effect on mechanical properties of concrete
Author(s):
LI Xin-zhong;  WEI Xue-ying;  ZHAO Jun-hai
School of Civil Engineering, Chang'an University, Xi'an 710061, Shaanxi, China
Keywords:
structure engineering;  concrete;  strain rate;  compressive strength;  tensile strength;  elastic modulus;  threshold strain
PACS:
O347
DOI:
-
Abstract:
The strain rate has a significant influence on the mechanical properties of concrete, the strain rate effects on compressive strength, tensile strength, elastic modulus and threshold strain were reviewed and summarized. The dynamic increase factor(DIF)obtained from various empirical equations were compared with experimental results reported in the references in a wide range of strain rate. The results show that the DIF of compressive strength can be determined by different empirical equations according to the range of strain rate. The DIF of tensile strength obtained from modified CEB(Euro-International Committee for Concrete)formula is coincidenced with experimental results. The strain rate effects on the elastic modulus are much smaller than that on the tensile strength and compressive strength. The CEB formula can be used to predict the dynamic elastic modulus. The strain rates effects on the threshold strain corresponding to the compressive strength, tensile strength are needed to study further. 5 figs, 19 refs.

References:

[1] Bischoff P H,Perry S H.Compressive behavior of concrete at high strain rates[J].Materials and Structures,1991,24(6):425-450.
[2]Tang T,Malvern L E,Jenkins D A.Rate effects in uniaxial dynamic compression of concrete[J].Journal of Engineering Mechanics,1992,118(1):108-124.
[3]Zhao H.A study on testing techniques for concrete-like materials under compressive impact loading[J].Cement Concrete Composite,1998,20(4):293-299.
[4]Ross C A,Tedesco J W,Kuennen S T.Effects of strain rate on concrete strength[J].Materials Journal,1995,92(1):37-47.
[5]Tedesco J W,Ross C A.Strain-rate-dependent constitutive equations for concrete[J].Journal of Pressure Vessel Technology,1998,120(4):398-405.
[6]Grote D L,Park S W,Zhou M.Dynamic behavior of concrete at high strain rates and pressures I:experimental characterization[J].International Journal of Impact Engineering,2001,25(9):869-886.
[7]Ross C A,Thompson P Y,Tedesco J W.Split-Hopkinson pressure-bar tests on concrete and mortar in tension and compression[J].Materials Journal,1989,86(5):475-481.
[8]Tedesco J W,Ross C A.Experimental and numerical analysis of high strain rate splitting tensile tests[J].Materials Journal,1993,90(2):162-169.
[9]Ross C A,Jerome D M,Tedesco J W,et al.Moisture and strain rate effects on concrete strength[J].Materials Journal,1996,93(3):293-300.
[10]Tedesco J W,Ross C A,Mcgill P B,et al.Numerical analysis of high strain rate concrete direct tension tests[J].Computers & Structures,1991,40(2):313-327.
[11]Brara A,Klepaczko J R.Experimental characterization of concrete in dynamic tension[J].Mechanics of Materials,2006,38(3):253-267.
[12]Yan D M,Lin G.Dynamic properties of concrete in direct tension[J].Cement and Concrete Research,2006,36(7):1371-1378.
[13]Sukontasukkul P,Nimityongskul P,Mindess S.Effect of loading rate on damage of concrete[J].Cement and Concrete Research,2004,34(11):2127-2134.
[14]张学钢.大体积混凝土芯部温度监测及力学性能变化[J].筑路机械与施工机械化,2011,28(5):74-77. ZHANG Xue-gang.Temperature monitoring and mechanical property change of core of mass concrete[J].Road Machinery & Construction Mechanization,2011,28(5):74-77.
[15]郭 猛,刘 洪,白文静.混凝土桥梁结构的等耐久性设计[J].建筑科学与工程学板,2010,27(1):117-121. GUO Meng,LIU Hong,BAI Wen-jing.Equal durability design of concrete bridge structure[J].Journal of Architecture and Civil Engineering,2010,27(1):117-121.
[16]肖诗云,林 皋,逯静洲,等.应变率对混凝土抗压性能的影响[J].哈尔滨建筑大学学报,2002,35(5):35-39. XIAO Shi-yun,LIN Gao,LU Jing-zhou,et al.Effect of strain rate on dynamic behavior of concrete in compression[J].Journal of Harbin University of Civil Engineering & Architecture,2002,35(5):35-39.
[17]Li Q M,Meng H.About the dynamic strength enhancement of concrete-like materials in a split Hopkinson pressure bar test[J].International Journal of Solids and Structures,2003,40(2):343-360.
[18]Malvar L J,Ross C A.Review of strain rate effects for concrete in tension[J].Materials Journal,1998,95(6):735-739.
[19]蒋昭镳,陈江瑛,黄得进,等.混凝土结构动态安全分析的重要基础:混凝土动态力学性能[J].宁波大学学报:理工版,1997,10(2):50-57. JIANG Zhao-biao,CHEN Jiang-ying,HUANG De-jin,et al.Dynamic mechanical behaviour of concrete:the fundamental element of safety analysis for concrete structures[J].Journal of Ningbo University:Natural Science & Engineering Edition,1997,10(2):50-57.

Memo

Memo:
-
Last Update: 2012-04-30