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Online since: October 2010
Authors: Yang Gao, Kai Lin, Qing Gao, Chang Jun Yang
Table.1 Fatigue test data of GH4133 (250℃, Strain Ratio R =﹣1)
Specimens
Δεt/2
Δεe/2
Δεp/2
Δσ/2(MPa)
2Nf
1
0.00421
0.00402
0.00019
826
15900
2
0.00418
0.00395
0.00023
836
12500
3
0.00425
0.00401
0.00024
802
22546
4
0.00425
0.00405
0.00020
841
19050
5
0.00424
0.00405
0.00019
801
9984
6
0.00485
0.00442
0.00043
903
11724
7
0.00481
0.00440
0.00041
896
9338
8
0.00484
0.00445
0.00039
894
10154
9
0.00481
0.00431
0.00050
898
10862
10
0.00481
0.00434
0.00047
872
10836
11
0.00544
0.00467
0.00077
951
6674
12
0.00540
0.00474
0.00066
917
7198
13
0.00543
0.00468
0.00075
951
7906
14
0.00545
0.00462
0.00083
930
10266
15
0.00538
0.00466
0.00072
930
9598
16
0.00697
0.00533
0.00164
954
4690
17
0.00699
0.00515
0.00184
994
2752
18
0.00695
0.00527
0.00168
991
3368
19
0.00701
0.00518
0.00183
962
3674
20
0.00692
0.00524
0.00168
1001
3334
Fig. 1 The distribution of cycle stress-strain model of GH4133
Probabilistic cyclic strain-life model
Manson-Coffin relationship between total strain and fatigue life is
Online since: March 2017
Authors: Seung Jo Lee
Garnet
Nylon
Polypropylene
Steel Fiber
Fig. 2 Garnet and fibers used in this study
Table 1 Chemical composition and physical properties of binders
Chemical composition (%)
Physical Properties
-
SiO2
Al2O3
Fe2O3
CaO
MgO
SO3
K2O
Ig.loss
Density (g/cm3)
Cement
21.5
6.5
3.1
62.3
2.9
1.9
0.32
1.3
3.15
Garnet
71.8
10.99
3.32
0.88
0.33
-
4.55
-
2.2~2.5
Fly-ash
58.2
22.29
7.27
-
1.1
0.3
-
5.2
2.3
Table 2 Physical properties of polypropylene and nylon, steel fiber
Type of fiber
Density
(g/cm3)
Tensile strength
(MPa)
Elasticity modulus
(MPa)
Shape ratio (%)
Diameter
(㎛)
Length
(mm)
Polypropylene
0.91
325
3400
-
20
6
Nylon
1.15
896
4500
-
12
6
Steel fiber
7.85
1118
-
62.7
0.5
31.06
Table 3 Physical properties of an aggregate
Types
Density
(g/cm3)
Size
(mm)
Unit volume weight(kg/m3)
Absorption
Void
Solid volume
Fineness modulus
(%)
Sand
2.61
5
1578
1.04
44
51
2.75
Gravel
2.63
10
1582
0.9
41
47
6.33
Table 4 Mixing properties composition of W/B ratios and materials
Specimens
W/B
(%)
Online since: January 2009
Authors: Yun Qing Ma, Xing Jun Liu, Wan Jun Jin, Shui Yuan Yang, Jin Bin Zhang, Yi Xiong Huang
Alloy code Elastic modulus
(GPa)
Tensile strength
(MPa)
Tensile
elongation (%)
Ratio of
strength-to-modulus
V316 [16] 379 965 - 2.55
Ti-6Al-4V [17] 124 896 - 7.23
Ti-40Ta 72 612 24.4 8.50
Ti-55Ta 75 578 21.3 7.71
Ti-65Ta 66 551 17.6 8.35
Summary
The martensitic transformation temperatures of Ti-Ta alloys decrease with increasing Ta content.
Online since: October 2011
Authors: Qing Ning Li, Chang Gao, Xian Li Yan, Li Ying Wang
Internal force values of the bridge in different load cases
internal
force
load
case
control section
A
B
C
D
E
F
G
H
I
Fx
[kN]
Ey
3669
4325
4634
3520
1
3557
4646
5126
4315
Ey+0.5Ez
4448
5357
5360
4077
124
3613
4247
4978
4064
Ex
1465
1536
790
902
95
869
750
1579
1453
Ex+0.5Ez
2058
2837
1185
2186
185
1988
1184
3182
2322
G
-992
-1317
-595
-989
-62
-997
-595
-1313
-990
Fy
[kN]
Ey
131
130
5
98
3
90
5
102
103
Ey+0.5Ez
182
182
5
133
37
140
7
92
95
Ex
1510
1298
29
1096
91
1724
33
819
936
Ex+0.5Ez
1573
1360
29
1116
104
1753
33
831
949
G
-28
-28
16
439
379
-23
0
675
675
Fz
[kN]
Ey
3135
1162
14
4865
155
4634
13
1807
2921
Ey+0.5Ez
3150
1479
17
5185
155
5952
12
1548
3138
Ex
791
339
4
712
1
589
4
336
892
Ex+0.5Ez
2438
837
8
1692
1
1595
7
808
2597
G
-866
-5
9
28261
0
28057
9
-5
-863
Mx
[kN•m]
Ey
896
769
9
1483
176
2055
9
1127
835
Ey+0.5Ez
1070
864
9
1475
175
2204
10
1162
819
Ex
6934
2685
20
8694
1
6243
20
2080
7883
Ex+0.5Ez
6991
2655
19
8658
2
6491
20
2085
7756
G
4572
1062
21
-36
5
3925
0
612