Search results for query: *

Hello Prost, Actually as you suggested, for the S-N data analysis I have already used the fatigue life model according to the MIL-HDBK-5 procedure and derive the curve fitting equation using Microcal Origin software. The equation can be typed and you can get the parameters A, B, ... as you...

Dear All, I would like to curve fit fatigue S-N and crack growth da/dN-dK data. Can anybody suggest me a regression analysis and curve fitting software suitable for this? Thanks. Fatstress

CM400T, I do not agree with you CM. The discussion worth every bit of it, at least for myself, and if I may see myself as being part of the FE community. After reading all the given comments the message is simple: share of information and a reflection and a review of our stand point. And it is...

bohrer, take a look into thread31-121526.. wk-taylor peovided quite an extensive explanation there.. Basically I have the same doubt as you are. To answer your question, the best thing is for you to perform coupon test with different interference level. But you have to be carefull, which type...

Guys, Thanks for all the comments and suggestions. And corus, thanks also for being honest... But, where did you buy your software? From a similar site? I have checked the site with McAfee Site Advisor and it said: "Feedback from credible users indicates an overall concern with shopping at...

Dear All, Nasgro free version...is there an existing link that you can download it? Lcubed..?

Dear All, I googled the web and found this: Download Ansys AI-Nastran 1.0 Buy cheap OEM Ansys AI-Nastran 1.0 downloadable $45 Buy Http >> And the site : http://www.cheap-software-megastore.com/index.php?target=desc&progid=1771 I would appreciate if somebody could tell me whether you really...

Many thanks to you too Lcubed...

JP, look also into the Thread I started, thread31-121526 .....But I have received an answer from Hi-shear already and according to them the higher interference that can be achieved with Hi-lite is due to the different lead-in radius design.... wktyalor and Kenneth also submitted a lot of...

MNLiaison, as you know generally the fatigue performance of a structural joint, for instance in a sheet metal lap joint, will be depending on the : 1. Number of rivet rows 2. Rivet diameter, and 3. Rivet type Regarding the rivet types, you need to compare qualitatively the hole filling...

ARDTL, Do you have a limitation how deep you can scarf a component made of CC ? And do you need to implement a dedicated inspection program or can it be just fire and forget?

What is an Adel clamp and how do you use it ?

RPstress, Answer to your question can be found in the folowing link... http://www.iht.com/articles/ap/2007/08/24/america/NA-FIN-US-Boeing-787-Crash-Test.php ....dropping a 10-foot-long (3-meter) fuselage section from a height of about two stories to see how the carbon-fiber composites would...

Monolithic Alu, just the usual Aluminum sheet or plate, not laminates, ARALL, or Glare. If I understand correctly, FAA required a full scale composite fuselage test article for the crash test. Cannot it be a smaller scale or only a few frame bays of fuselage structure only? Is there any...

Dear All, So Boeing has carried out their composite fuselage 787 crash test... Is it a new requirement only for composite fuselage or also for monolithic Aluminium ? Regards

Fastmouse, That's it, our specimens are different. I guess I was not specific enough regarding my suggestion that no life improvement of hole coldworking for high load transfer joint. It should be meant for joints with significant secondary bending moment. Your point regarding the warm GAG...

Hello SWComposites, Thanks for the tips. Then except delamination, the ADLs for composite are the same as for metallic materials. And there is no easy way, we really have to work alot with the test department to determine the ADLs. One other question if I may, is it possible/common to repair a...

Fastmouse, I am still curious of your test results. Your high load transfer joint type of specimen used in your test, was it a lap joint, a single shear butt joint, or double shear butt joint ? Or do you have a significant secondary bending moment in your test specimens ? If it is a symmetric...

Hello SWComposite, I am new in this subject, but I would like try to explain what I am looking for. Well, as you know we have allowable damage limit for scratches and dents for aircraft metallic materials. Beyond this limit you have to contact the OEM for further instruction. The question, what...

Dear All, Can anybody suggest me what would be the allowable damage accepted in aircraft composite (CFRP) structural component in production and in-service ? Or is there a thread about this already or a reference book that you can suggest to read? Thanks...