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Dynamic fracture-mechanics testing system

A technology of fracture mechanics and test system, applied in the direction of testing material strength by applying repetitive force/pulsation force, testing material strength by using one-time impact force, scientific instruments, etc., can solve problems such as insufficient, and achieve accurate and complete results

Active Publication Date: 2006-08-09
NCS TESTING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] But as a complete dynamic fracture mechanics testing machine is far from enough

Method used

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  • Dynamic fracture-mechanics testing system
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  • Dynamic fracture-mechanics testing system

Examples

Experimental program
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Embodiment

[0043] First, set the loading speed for the system according to the requirements. The motor 1.5 in the automatic hanging mechanism 1.2 changes the hanging angle α of the automatic hanging mechanism 1.2. According to the design requirements, the electric control part 4.1 on the temperature control unit 4 controls the high and low temperature The box 4.2 sets the temperature required for the test, implements temperature rise and fall and heat preservation, and transmits the temperature data of the sample 1.7 through the data transmission unit 4.3 during the test. Secondly, the pendulum 1.4 is placed into the automatic pendulum hanging mechanism 1.2 by the dynamic loading mechanism 1, so that the pendulum 1.4 has a certain potential energy, and then the sample 1.7 is placed on the jaw 1.6 of the dynamic loading mechanism 1, the pendulum 1.4 is released, and the pendulum The hammer impacts the sample 1.7 at a certain initial velocity, and at the same time the synchronous trigger 3....

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Abstract

Present invention discloses a dynamical fracture mechanics testing system referring to material mechanics analyse testing field. Said dynamical fracture mechanics testing system includes dynamical loading mechanism, dynamical fracture image collection unit, dynamic signal collection unit, temperature control unit, automatically verification unit and data processing unit etc. Said invention utilizes dynamical fracture mechanics testing system to make dynamical loading to dynamical fracture mechanics test sample with accuracy complete result, providing reference to metal and other material fracture behaviour, the rule of material anti-breaking ability variation depending to temperature, and dynamical fracture toughness analysis.

Description

technical field [0001] The invention belongs to the field of testing and analyzing the mechanical properties of materials, and mainly relates to testing and analyzing the dynamic mechanical properties of inorganic materials such as metals and plastics, in particular to a dynamic fracture mechanics testing system. Background technique [0002] The safety assessment of the service conditions of metal structural parts is mainly based on the assessment of its breaking resistance. Restricted by conditions, the safety assessment of static fracture mechanics is mostly carried out at present. In practice, a large number of failure accidents mostly occur under dynamic loads, such as the fracture of the luxury ship Titanic, the disintegration of the space shuttle Challenger, etc. Therefore, the safety assessment of dynamic fracture mechanics of materials is more scientific and reliable. [0003] The traditional dynamic testing machine is an impact testing machine, which can only rec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/00G01N3/30G01N3/34
Inventor 张庄洪刚任立志任志远张敬敏王春华户天柱
Owner NCS TESTING TECH
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