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Systems and methods for determining modulus of elasticity

A technique of elastic modulus and relationship, which is applied in the direction of using stable tension/pressure to test material strength, measuring device, strength characteristics, etc., can solve the problems of unable to provide elastic modulus and unusable elastic modulus.

Active Publication Date: 2020-01-10
CATERPILLAR PAVING PROD INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Current methods do not provide a modulus of elasticity with engineering unit values ​​that can be determined during the compaction process
A disadvantage of the current method is that the dimensionless modulus of elasticity cannot be used for other purposes, such as by design engineers who need to know the specific degree of compaction of soil or other materials to construct or design roads, building platforms, etc.

Method used

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  • Systems and methods for determining modulus of elasticity
  • Systems and methods for determining modulus of elasticity
  • Systems and methods for determining modulus of elasticity

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Embodiment Construction

[0015] The present invention generally relates to a system and method for determining the modulus of elasticity in engineering units of a work material as it is being compacted by a compactor or machine. The method involves disposing loose material on a surface, which can be further compacted or compacted. A compactor or machine travels over the surface of the material being laid out, creating a force that, in cooperation with the weight of the machine, is applied to the material, compressing it to a state of greater hardness and density. The compactor may pass over the surface one or more times to provide the desired degree of compaction of the work material. The material being compacted may include asphalt, soil, gravel, sand, landfill waste, concrete, and the like. In the following, the material to be compacted may be referred to as working material.

[0016] figure 1 A side view of a compactor system according to an aspect of the invention is shown. In this view, an ex...

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Abstract

A system for determining a modulus of resilience of a work material during a compaction operation includes a processor configured to determine a work material stiffness based on a force applied to the work material and a displacement of the work material, and determine the modulus of resilience of the work material based on a relationship between the work material stiffness and the modulus of resilience of the work material.

Description

technical field [0001] The present invention relates generally to a machine for compacting material, and more particularly to a system and method for determining the modulus of elasticity of soil during the soil compaction process. Background technique [0002] When constructing buildings, roads, parking lots, and other structures, compaction machines or compactors are commonly used to compact work materials (eg, soil, gravel, asphalt) to a desired strength. Typically, earthen material at a work site must be compacted, and one or more compaction machines must be caused to successively compact the material until a desired degree of compaction is achieved. The process may require multiple passes over the work material to achieve the desired degree. The modulus of elasticity is a measure used to determine the degree of compaction. [0003] There are various methods for determining the modulus of elasticity of soil or other materials. Current techniques include the use of nuc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/40
CPCE02D1/022E02D3/026G01N3/08G01N2203/0019G01N2203/0085G01N33/24
Inventor K·施托克尔L·迟P·柯科兰N·欧特克兰
Owner CATERPILLAR PAVING PROD INC