scholarly journals Suitability of laminated steel-copper structure for high-pressure hydraulic manifolds

2019 ◽  
Vol 52 (4) ◽  
pp. 244-250
Author(s):  
Lauri Siivonen ◽  
Miika Paloniitty ◽  
Matti Linjama ◽  
Antti Hynnä ◽  
Sirpa Launis
Keyword(s):  
Heat Treatment ◽  
High Pressure ◽  
Microscopic Study ◽  
Load Test ◽  
Dynamic Tests ◽  
Hydraulic Test ◽  
Micro Cracks ◽  
Static And Dynamic Tests ◽  
Copper Structure

Vacuum brazed steel-copper laminate could be used in high-pressure hydraulic manifolds in order to reduce size, weight and allow use of complex designs. The durability of such material is unknown. Samples were manufactured and static and dynamic tests were conducted. Results showed reduced material performance due to heat treatment. A hydraulic test manifold was manufactured and a long-term pressure load test was conducted. The material showed surprisingly good durability and pressure hull did not break in tests. A microscopic study was performed and only solidified copper in the corners had micro cracks after 10 million test cycles.

Study on the Static and Dynamic Load Test of Nicky Bridge

2014 ◽  
Vol 501-504 ◽  
pp. 1194-1198
Author(s):  
Dan Ni Wang ◽  
Lei Wang ◽  
Ming Li ◽  
Yue Long Sun
Keyword(s):  
Dynamic Load ◽  
Working Condition ◽  
Dynamic Structure ◽  
Dynamic Structure Factor ◽  
Load Test ◽  
Dynamic Tests ◽  
Actual Working ◽  
Dynamic Load Test ◽  
Static And Dynamic Tests ◽  
Working Performance

In order to understand the actual working condition and the bearing capacity of the bridge, the static and dynamic tests were carried out. By measuring the stress-strain and deformation of the main control sections of the bridge, we can determine if the design expectations of the structure and its actual working performance were consistent. Through dynamic load test motivating the bridge, we got the dynamic structure factor and vibration characteristics.

Quality Characteristics of Long Term Stored Rice Flour by High Pressure Heat Treatment

2020 ◽  
Vol 36 (05) ◽  
pp. 424-435
Author(s):  
Mi-Sun Jung ◽  
Ok-Ja Choi
Keyword(s):  
Heat Treatment ◽  
High Pressure ◽  
Rice Flour ◽  
Quality Characteristics

Study on the Load Test of Xiangjiang Cable-Stayed Bridge

2013 ◽  
Vol 361-363 ◽  
pp. 1438-1441
Author(s):  
Yue Long Sun ◽  
Lei Wang
Keyword(s):  
Bearing Capacity ◽  
Mechanical Characteristic ◽  
Dynamic Characteristics ◽  
Working Condition ◽  
Load Test ◽  
Bridge Structure ◽  
Dynamic Tests ◽  
Cable Stayed Bridge ◽  
Actual Working ◽  
Static And Dynamic Tests

Xiangjiang Bridge is a newly built bridge. In order to understand the actual working condition and the bearing capacity of the bridge, the static and dynamic tests are carried out. This paper describes the principles and methods of the load test and the measurement of the stiffness and dynamic characteristics of the bridge structure. Through analyzing the test, the data and information of bridge can be accumulated and the mechanical characteristic of this kind of bridge is discussed.

Study on the Load Test of Old Bridge

2011 ◽  
Vol 250-253 ◽  
pp. 1422-1425
Author(s):  
Ping Zhang ◽  
Lei Wang ◽  
Dong Xiao Li
Keyword(s):  
Bearing Capacity ◽  
Dynamic Characteristics ◽  
Dynamic Load ◽  
Mechanical Characteristics ◽  
Working Condition ◽  
Load Test ◽  
Bridge Structure ◽  
Dynamic Tests ◽  
Load Tests ◽  
Static And Dynamic Tests

It may appear different diseases after years of operation on old bridges. In order to understand the actual working condition and the bearing capacity of the bridge, the static and dynamic tests are taken. It describes the principle and methods for the load test via taking Banlashan Arch Bridge for example in this paper. The stiffness, strength and dynamic characteristics of bridge structure are measured, and the maintenance and reinforcing schemes are proposed, according to the results of static and dynamic load tests. Through analyzing the tests, the data and information of bridge can be accumulated, and the mechanical characteristics of this kind of bridge are discussed.

Static and Dynamic Testing Study on Mechanical Behavior of Longtan Bridge

2014 ◽  
Vol 684 ◽  
pp. 100-104
Author(s):  
De Cheng Fu ◽  
Yu Hui Wen ◽  
Lei Wang
Keyword(s):  
Static Load ◽  
Dynamic Testing ◽  
Load Test ◽  
Dynamic Tests ◽  
Test Vehicle ◽  
Basic Principles ◽  
Fluctuation Test ◽  
Dynamic Load Test ◽  
Working Principle ◽  
Static And Dynamic Tests

To assess the carrying capacity and reliability of the-Longtan Bridge, applied static load in the middle of the bridge step by step, then collected strain and deflection data of the beam. In order to understand the working principle of a bridge under dynamic loads, dynamic load test - Vehicle traffic test and fluctuation test t was performed, and vibration frequency data was collected. This paper described the basic principles of the bridge static and dynamic tests, and introduced the program of the experiment. Based on the test data, the static and dynamic mechanism of the bridge was discussed, the conclusion provides the basis for further study of bridge mechanism of the mechanical.

Study on the Static and Dynamic Load Test of Continuous Girder Bridge

2013 ◽  
Vol 405-408 ◽  
pp. 1641-1644
Author(s):  
Shi Hua Yu ◽  
Ting Zhang ◽  
Qing Yun Zhao
Keyword(s):  
Bearing Capacity ◽  
Dynamic Load ◽  
Mechanical Characteristics ◽  
Working Condition ◽  
Load Test ◽  
Dynamic Tests ◽  
Dynamic Load Test ◽  
Continuous Girder Bridge ◽  
Static And Dynamic Tests ◽  
Girder Bridge

As we all know that the bridge may appear different diseases after years of operation. The static and dynamic tests are taken to test the actual working condition and the bearing capacity of the bridge. This article describes the principles and methods of the brdige test. We will analyze the tests, the data and information of bridge so that we can accumulate the mechanical characteristics of this bridge.

Study on the Load Test of Ji'an Slab Bridge

2014 ◽  
Vol 501-504 ◽  
pp. 1247-1250
Author(s):  
Ming Li ◽  
Lei Wang ◽  
Zhuang Li ◽  
Danni Wang ◽  
Xing Hang Long ◽  
...  
Keyword(s):  
Bearing Capacity ◽  
Working Conditions ◽  
Dynamic Characteristics ◽  
Dynamic Load ◽  
Load Test ◽  
Dynamic Tests ◽  
Actual Working ◽  
Dynamic Load Test ◽  
Static And Dynamic Tests

Ji'an Bridge is a newly built bridge. In order to understand the bearing capacity and actual working conditions of the bridge, the static and dynamic tests were carried out. This paper mainly describe the methods and principles of the load test. Through static and dynamic load test, we can detect and analyze the bridges action of stress, deflection and dynamic characteristics, then evaluate the bearing capacity of the bridge, which can provide reference for other similar bridges.

Effects of high pressure on the crystallization of carbon fiber reinforced polyetheretherketone (CF/PEEK) laminate composites

1990 ◽  
Vol 48 (4) ◽  
pp. 876-877
Author(s):  
Hong-Ming Lin ◽  
C. H. Liu ◽  
R. F. Lee
Keyword(s):  
High Pressure ◽  
Carbon Fiber ◽  
Sample Surface ◽  
High Yield ◽  
Fiber Reinforced ◽  
Laminate Composites ◽  
Peek Composite ◽  
Continuous Carbon Fiber ◽  
Carbon Fiber Reinforced

Polyetheretherketone (PEEK) is a crystallizable thermoplastic used as composite matrix materials in application which requires high yield stress, high toughness, long term high temperature service, and resistance to solvent and radiation. There have been several reports on the crystallization behavior of neat PEEK and of CF/PEEK composite. Other reports discussed the effects of crystallization on the mechanical properties of PEEK and CF/PEEK composites. However, these reports were all concerned with the crystallization or melting processes at or close to atmospheric pressure. Thus, the effects of high pressure on the crystallization of CF/PEEK will be examined in this study.The continuous carbon fiber reinforced PEEK (CF/PEEK) laminate composite with 68 wt.% of fibers was obtained from Imperial Chemical Industry (ICI). For the high pressure experiments, HIP was used to keep these samples under 1000, 1500 or 2000 atm. Then the samples were slowly cooled from 420 °C to 60 °C in the cooling rate about 1 - 2 degree per minute to induce high pressure crystallization. After the high pressure treatment, the samples were scanned in regular DSC to study the crystallinity and the melting temperature. Following the regular polishing, etching, and gold coating of the sample surface, the scanning electron microscope (SEM) was used to image the microstructure of the crystals. Also the samples about 25mmx5mmx3mm were prepared for the 3-point bending tests.

Comparison of Ricotta cheese made by high pressure treatment with that produced by heat treatment of sweet whey

2002 ◽  
Vol 22 (5) ◽  
pp. 601-615 ◽  
Author(s):  
Souhail Besbes ◽  
Christophe Blecker ◽  
Hamadi Attia ◽  
Carine Massaux ◽  
Claude Deroanne
Keyword(s):  
Heat Treatment ◽  
High Pressure ◽  
Pressure Treatment ◽  
High Pressure Treatment ◽  
Sweet Whey
Sign in / Sign up

Export Citation Format

Share Document