The anomalous region of elastic-plastic beam dynamics

Q. M. Li; Y. M. Liu; G. W. Ma

doi:10.1016/j.ijimpeng.2005.01.003

The anomalous region of elastic-plastic beam dynamics

Q. M. Li^*, Y. M. Liu, G. W. Ma

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

The anomalous response of an elastic-plastic beam may occur in a narrow region of loading parameters (Symonds, Yu. ASME J Appl Mech 1985;52:517-22). The existence and the width of the anomalous region of loading parameter depend on system parameters. When the width of the anomalous region is less than the design or experimental tolerance, experimental results are uncertain (Li, Liu. Int J Impact Engng 2003;28(6):643-51). In the present paper, an elastic, linear plastic-strain-hardening Shanley model is used to understand the dependence of anomalous region on system parameters. Results show that there exist two anomalous regions when the strain-hardening parameter R varies between 0 and 0.18. The very closeness of φ0c and φ0b indicates that the beam response is extremely sensitive to the load parameter for the specifically selected system parameters.

Original language	English
Pages (from-to)	1357-1369
Number of pages	13
Journal	International Journal of Impact Engineering
Volume	32
Issue number	9
DOIs	https://doi.org/10.1016/j.ijimpeng.2005.01.003
Publication status	Published - Sept 2006
Externally published	Yes

Keywords

Anomalous response
Elastic-plastic beam dynamics
Shanley model

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10.1016/j.ijimpeng.2005.01.003

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title = "The anomalous region of elastic-plastic beam dynamics",

abstract = "The anomalous response of an elastic-plastic beam may occur in a narrow region of loading parameters (Symonds, Yu. ASME J Appl Mech 1985;52:517-22). The existence and the width of the anomalous region of loading parameter depend on system parameters. When the width of the anomalous region is less than the design or experimental tolerance, experimental results are uncertain (Li, Liu. Int J Impact Engng 2003;28(6):643-51). In the present paper, an elastic, linear plastic-strain-hardening Shanley model is used to understand the dependence of anomalous region on system parameters. Results show that there exist two anomalous regions when the strain-hardening parameter R varies between 0 and 0.18. The very closeness of φ0c and φ0b indicates that the beam response is extremely sensitive to the load parameter for the specifically selected system parameters.",

keywords = "Anomalous response, Elastic-plastic beam dynamics, Shanley model",

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AU - Li, Q. M.

AU - Liu, Y. M.

AU - Ma, G. W.

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AB - The anomalous response of an elastic-plastic beam may occur in a narrow region of loading parameters (Symonds, Yu. ASME J Appl Mech 1985;52:517-22). The existence and the width of the anomalous region of loading parameter depend on system parameters. When the width of the anomalous region is less than the design or experimental tolerance, experimental results are uncertain (Li, Liu. Int J Impact Engng 2003;28(6):643-51). In the present paper, an elastic, linear plastic-strain-hardening Shanley model is used to understand the dependence of anomalous region on system parameters. Results show that there exist two anomalous regions when the strain-hardening parameter R varies between 0 and 0.18. The very closeness of φ0c and φ0b indicates that the beam response is extremely sensitive to the load parameter for the specifically selected system parameters.

KW - Anomalous response

KW - Elastic-plastic beam dynamics

KW - Shanley model

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SP - 1357

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JO - International Journal of Impact Engineering

JF - International Journal of Impact Engineering

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The anomalous region of elastic-plastic beam dynamics

Abstract

Keywords

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