. Test results

Table 2 presents the numerical data of static strength Su and its mean Su, while Table 3 presents fatigue life data. These data were systematically obtained as described above and are expected to be used for the reference or comparison data for conventional CF/BMI composite materials and new CF/BMI materials recently developed for low-cost and out-of­autoclave manufacturing such as those produced by a VaRTM (Vacuum assisted Resin Transfer Molding) method.

Specimen

Load

Temp. (°C)

Strength Su

(MPa)

Mean Su (MPa)

NH

Tens.

RT (23)

1016, 1060, 1116, 1126

1079

150

871, 1000, 1033

968

Comp.

RT (23)

834, 884, 899

872

120

751

751

150

651, 652, 659

654

180

586

586

215

246

246

OH

Tens.

RT (23)

704, 724

714

150

672, 708

690

Comp.

RT (23)

409, 446, 476, 514

461

150

376, 377, 391, 408

388

Table 2. Static strength data

Fat.

Load

(R)

T

(°C)

S-N relationship:

S=Smax or Smin (MPa), N=Number of cycles to failure

Tens.

(0.1)

RT

(23)

S

688

688

652

652

651

616

614

580

N

5

134

553

8,960

338,223

211,916

*89,000

4,313,329

150

S

674

639

638

602

567

580

579

N

8

62,283

3,469

67,000

445,500

*1,000,000

5,760,765

Comp.

(10)

RT

(23)

S

-410

-387

-387

-364

-364

-364

-319

-318

N

3,150

7,771

8,891

16,294

38,871

47,191

836,882

2,112,567

150

S

-356

-356

-336

-336

-316

-316

-277

N

807

1,734

2,428

13,558

225,944

261,779

6,726,000

Tens.-

Comp.

(-1.0)

RT

(23)

S

387

387

364

341

319

318

273

N

460

5,583

11,197

24,210

81,004

76,457

851,768

150

S

336

316

277

277

240

N

892

15,114

132,437

239,397

1,182,763

R=stress ratio, T=temperature, * indicates no failure Table 3. Fatigue life data