Examination of Damage and Material Evaluation[1]

Ultrasonic reflection and material evaluation

Revue de Physique Appliquée ◽

10.1051/rphysap:01985002006037700 ◽

1985 ◽

Vol 20 (6) ◽

pp. 377-381 ◽

Cited By ~ 1

Author(s):

W.G. Mayer

Keyword(s):

Material Evaluation

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Asset Inspection Management System as a Reliable Inspection/ Monitoring Tool

Materials Evaluation ◽

10.32548/2020.me-04125 ◽

2020 ◽

Vol 78 (12) ◽

pp. 1276-1285

Author(s):

Shibu John A

Keyword(s):

Asset Management ◽

Management System ◽

Balance Sheet ◽

Integrity Assessment ◽

Material Evaluation ◽

The People ◽

Physical Assets ◽

Asset Management System ◽

On Time Delivery ◽

Capital Intensive

Enterprise asset management (EAM) systems are used by asset owners and/or operators to manage the maintenance of their physical assets. These assets, including equipment, facilities, vehicles, and infrastructure, need maintenance to sustain their operations. An EAM system provides the means to have less unplanned downtime and extended asset longevity, which offers clear business benefits that improve the profit and loss statement and balance sheet. Particularly for capital-intensive industries, like drilling and exploration, the failure of on-time delivery of critical equipment or processes is disruptive and costs nonproductive time and customer satisfaction. Organizations understand these issues and employ an appropriate asset management system to engineer their asset maintenance and management. An EAM system is needed to manage the people, assets/equipment, and processes. EAMs are used to plan, optimize, execute, and track the needed maintenance activities with associated priorities, skills, materials, tools, and information. Similarly, nondestructive testing (NDT) is used as a tool for integrity assessment of assets in drilling and exploration. The main advantage of using NDT is that the item’s intended use or serviceability is not affected. The selection of a specific technique should be based on knowledge and skills that include design, material processing, and material evaluation. Validating the purpose of this paper, we emphasize the importance of optimizing the asset utilization and serviceability to enhance overall efficiency by integrating EAM software that manages assets, the operation management system (OMS) controlling the processes, and asset inspection management systems (AIMSs).

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Rubber Fracture Characterization Using J-Integral

Tire Science and Technology ◽

10.2346/1.2148797 ◽

1988 ◽

Vol 16 (1) ◽

pp. 44-60 ◽

Cited By ~ 14

Author(s):

C. L. Chow ◽

J. Wang ◽

P. N. Tse

Keyword(s):

Crack Initiation ◽

Carbon Black ◽

Natural Rubber ◽

Fracture Parameter ◽

J Integral ◽

Specimen Length ◽

Fracture Characterization ◽

Premature Failure ◽

Testing Procedures ◽

Material Evaluation

Abstract The use of the J-integral to investigate fracture characterization in a carbon black reinforced natural rubber is described. Three applications to crack initiation are included: two based on the use of a hypothetical zero specimen length and one on conventional testing procedures for metals. While the validity of the zero-length methods is questionable, the conventional method yielded a consistent Jc value of 1.01 N/mm for a typical tire compound. This value was obtained from 24 combinations of varying specimen geometries and pre-crack lengths. The J-integral is revealed as a valid fracture parameter that is applicable not only for material evaluation but also for designing tire structures to resist premature failure. These conclusions disagree with those from an earlier investigation, so the causes for the discrepancies are examined and discussed.

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