铝(7079)基碳纤维增强金属基复合材料的压痕蠕变行为研究

Q3 Engineering

Journal of Mechanical Engineering Research and Developments Pub Date : 2019-08-29 DOI:10.26480/jmerd.05.2019.124.126

A. Somayaji, Narasimha Markala, Ajit M. Hebbale

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引用次数: 1

摘要

本研究旨在评估铝基碳纤维增强金属基复合材料在室温、100℃和200℃三种不同温度下，在2 Kg恒定载荷下的蠕变行为，并找出稳态蠕变速率和蠕变机制。在此试验中，允许一个端部为平的圆柱形压头在应力作用下在试样表面形成浅压痕。在给定应力下，以时间的函数来测量侵彻深度，以获得压痕蠕变曲线。在恒应力条件下，压痕蠕变曲线与法向蠕变曲线具有相似性。在不同的温度条件下重复同样的程序。印象蠕变曲线解释了试件的蠕变特性。四种不同等级的碳样品用于测试。偏转读数每隔30秒记录一次。绘制印痕蠕变曲线，找出蠕变行为。

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STUDIES OF IMPRESSION CREEP BEHAVIOR OF ALUMINUM (7079) BASED CARBON FIBER REINFORCED METAL MATRIX COMPOSITES

This current work aims to is to assess the impression creep behavior of Aluminum based Carbon Fiber reinforced Metal Matrix Composites for three different temperature namely, room temperature, 100oC and 200oC under a constant load of 2 Kg and to find the steady-state creep rates and creep mechanism occurring. In this test, a cylindrical indenter with a flat end is allowed under the action of stress to make a shallow impression on the surface of the specimen. Penetration depth at given stress is measured as a function of time to obtain an impression creep curve. At constant stress similarity can be seen between impression creep curve and normal creep curve. The same procedure is repeated for different temperature conditions. The impression creep curve explains creep characteristics of the specimens. Four different grade carbon specimens are used for testing. Deflection readings are noted for a time interval of 30 seconds. Impression creep curve will be plotted to find the creep behavior.

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来源期刊

Journal of Mechanical Engineering Research and Developments Engineering-Computational Mechanics

自引率

0.00%

发文量

审稿时长

9 weeks

期刊介绍： The scopes of the journal include, but are not limited to, the following topics: • Thermal Engineering and Fluids Engineering • Mechanics • Kinematics, Dynamics, & Control of Mechanical Systems • Mechatronics, Robotics and Automation • Design, Manufacturing, & Product Development • Human and Machine Haptics Specific topics of interest include: Advanced Manufacturing Technology, Analysis and Decision of Industry & Manufacturing System, Applied Mechanics, Biomechanics, CAD/CAM Integration Technology, Complex Curve Design, Manufacturing & Application, Computational Mechanics, Computer-aided Geometric Design & Simulation, Fluid Dynamics, Fluid Mechanics, General mechanics, Geomechanics, Industrial Application of CAD, Machinery and Machine Design, Machine Vision and Learning, Material Science and Processing, Mechanical Power Engineering, Mechatronics and Robotics, Artificial Intelligence, PC Guided Design and Manufacture, Precision Manufacturing & Measurement, Precision Mechanics, Production Technology, Quality & Reliability Engineering, Renewable Energy Technologies, Science and Engineering Computing, Solid Mechanics, Structural Dynamics, System Dynamics and Simulation, Systems Science and Systems Engineering, Vehicle Dynamic Performance Simulation, Virtual-tech Based System & Process-simulation, etc.