Now showing items 21-40 of 53

    • Finite element analysis of adhesive-bonded single-lap joints 

      Yang, Chihdar Charles; Guan, Zhidong; Tomblin, John S.; Sun, Wenjun (American Society of Mechanical Engineers(ASME), 2002-02)
      Finite element analyses were conducted using commercial software ABAQUS to analyze the mechanical behavior of single-lap adhesive-bonded joints. Adhesive was characterized for the stress-strain relation by comparing the ...
    • Finite element analysis of the sawing process for super abrasive diamond tools 

      Jerro, H.D.; Pang, Su-Seng; Yang, Chihdar Charles; Mirshams, R.A. (American Society of Mechanical Engineers (ASME), 1999-02)
      Circular diamond blade sawing is one of the most extensively used methods of processing stone and other hard materials. The process uses composite segments, which are composed of diamond grits in a metal matrix binder, ...
    • Fracture analysis of adhesive-bonded single-lap composite joints 

      Sun, Wenjun; Yang, Chihdar Charles (Society for the Advancement of Material and Process Engineering, 2004-05)
      A fracture mechanics model to estimate the energy release rate of adhesive-bonded single-lap composite joints under tension has been developed. The stress distributions of the adhesive-bonded single-lap composite joint ...
    • Heat-activated joining technology for composite to alloy piping systems 

      Stubblefield, Michael A.; Yang, Chihdar Charles; Pang, Su-Seng (Society of Plastics Engineers (SPE), 1998-04)
      A new process for joining composite to alloy piping systems, the heat-activated joining technique, has been developed. The strength of the heat coupling joint in bending, tension, and hydro static testing was comparable ...
    • Impact response and microstructural analysis of two glass/epoxy composite laminates 

      Pang, Su-Seng; Krishnappa, Sreeni; Yang, Chihdar Charles (American Society of Mechanical Engineers (ASME), 1995-06)
      Low velocity impact tests were performed on two glass/epoxy (spring orientation and crossply) composite laminates. A weight drop tower tester was previously constructed to study the impact energy absorbed by a composite ...
    • Impact response of composite laminates with a hemispherical indenter 

      Pang, Su-Seng; Zhao, Yi; Yang, Chihdar Charles; Griffin, Steven A. (Society of Plastics Engineers (SPE), 1991-10)
      A model for predicting the contact duration, force, indentation, and displacement under impact has been developed for impact of a composite laminated plate with a hemispherical indenter. The governing equations were first ...
    • Impact response of single-lap composite joints 

      Pang, Su-Seng; Yang, Chihdar Charles; Zhao, Yi (Elsevier, 1995)
      The low-velocity impact of adhesive-bonded single-lap composite joints has been studied using a spring-mass model. In this quasi-static model, the impact response is represented by a time-dependent force, and the target ...
    • Improving the mechanical properties of composite pipe using multi-angle filament winding 

      Lea, Richard H.; Yang, Chihdar Charles (National Association of Corrosion Engineers International, 1998-03)
      The benefits of composite materials-light weight, corrosion resistance, handling ease, etc., have long been appreciated. Composite piping systems are gaining wide acceptance in various industries such as petrochemical, ...
    • In-plane thermal characterization of fiberglass/phenolic honeycomb core through an experimental-numerical approach 

      Shahverdi Moghaddam, Hooman; Keshavanarayana, Suresh R.; Kothare, Aakash; Teoh, Ping; Yang, Chihdar Charles; Horner, Allison L. (DEStech Publications Inc., 2018)
      In the present study, a series of in-plane quasi-static tensile and compressive tests are carried out on a commercial Fiberglass/Phenolic hexagonal cell honeycomb core at elevated temperatures to investigate the high ...
    • Investigation of adhesive behavior in aircraft applications 

      Yang, Chihdar Charles; Tomblin, John S. (National Technical Information Service (NTIS), 2001-09)
      There are two parts included in this report. The first part evaluates the most commonly used test method for adhesive properties, ADTM D 5656 Standard Test Method for Thick-Adherend Metal Lap-Shear Joints for Determination ...
    • Investigation of thick bondline adhesive joints. FInal report 

      Tomblin, John S.; Yang, Chihdar Charles; Harter, P. (National Technical Information Service (NTIS), 2001-06)
      In recent years, the use of polymer matrix composite materials as primary structural components has risen, especially in the general aviation (GA) industry. The use of composites not only results in weight savings, but ...
    • Kinematics analysis of the chipping process using the circular diamond saw blade 

      Jerro, H.D.; Pang, Su-Seng; Yang, Chihdar Charles; Mirshams, R.A. (American Society of Mechanical Engineers (ASME), 1999-05)
      One of the primary goals in the design of a diamond blade cutting system is to reduce the cutting force. By understanding the fundamentals of the kinematics of the sawing operation, these forces can be lowered and even ...
    • Low-velocity impact and damage process of composite laminates 

      Guan, Zhidong; Yang, Chihdar Charles (SAGE Publications, 2002-04)
      Several important issues regarding damage simulation of composite laminates due to low velocity impact were investigated including contact law, damage initiation and the corresponding change of stiffness, and damping. ...
    • Qualification of advanced composite pipe for use in fire water deluge systems on open type offshore oil platforms 

      Stubblefield, M.A.; Yang, Chihdar Charles; Pang, Su-Seng; Lea, Richard H. (American Society of Mechanical Engineers (ASME), 1996-07)
      Different types of FIBERBOND pipe in the dry condition and with a butt & strap joint were subjected to a controlled fire for fire endurance evaluation. Testing adheres to a modification of the ASTM 1173-95 guideline, which ...
    • Strain distribution in a taper-taper adhesive-bonded joint in a composite flat plate 

      Helms, Jack E.; Yang, Chihdar Charles; Pang, Su-Seng (SAGE Publications, 1996-07)
      An analytical model of a taper-taper adhesive-bonded joint between two composite plates has been developed using a mechanics of materials approach. The derived model consists of four coupled second-order ordinary differential ...
    • Strain energy release rate analysis of adhesive-bonded composite joints with a prescribed interlaminar crack 

      Chadegani, Alireza; Yang, Chihdar Charles; Dan-Jumbo, Eugene (American Institute of Aeronautics and Astronautics, 2009-01)
      Delamination is among the critical failure modes in fiber-reinforced laminated composite structures. This paper presents an analytical approach by taking into account the first-ply failure in adhesive-bonded composite ...
    • Strain energy release rate analysis of adhesive-bounded composite laminate joints with a cohesive crack 

      Yang, Chihdar Charles; Dan-Jumbo, Eugene; Keller, Russell L.; Garg, V.; Raju, Salahuddin (American Society for Composites (ASC) & Canadian Association Composites Structures and Materials (CACSMA), 2009-09)
      Fiber-reinforced composites have been widely used in the aviation industry due to their light weight and high corrosion resistance. In many applications, bolted joints have been replaced by adhesive-bonded joints because ...
    • Strain energy release rate analysis of bonded structural composite joints with a prescribed crack 

      Yang, Chihdar Charles; Dan-Jumbo, Eugene; Sun, Wenjun (Society for the Advancement of Material and Process Engineering (SAMPE), 2006)
      Advanced composite materials have been widely used due to their light weight and high corrosion resistance. In many of these applications, bolted joint shave been replaced by adhesively bonded joints because of the weight ...
    • Strain energy release rate determination of prescribed cracks in adhesively-bonded single-lap composite joints with thick bondlines 

      Yang, Chihdar Charles; Chadegani, Alireza; Tomblin, John S. (Elsevier, 2008-07)
      An analytical model for determining the strain energy release rate due to a prescribed crack in an adhesively-bonded, single-lap composite joint with thick bondlines and subjected to axial tension is presented. An existing ...
    • Strength analysis of adhesive-bonded single-lap composite joints 

      Huang, Hai; Yang, Chihdar Charles (American Society of Mechanical Engineers(ASME), 2001-02)
      An analytical model was developed to determine the stress and strain distributions of adhesive-bonded composite single-lap joints under tension. Laminated anisotropic plate theory was applied in the derivation of the ...