By welderbrent
Date 05-14-2015 03:50
Edited 05-14-2015 04:07
Hello John,
Guys, it isn't that difficult. Look at Figure 4.13 and read the application: "Side Bend Specimens". So, looking at the figure, you have a 'side' view. Now, make it practical. You are going to bend test this coupon. With a SIDE bend. Which sides are critical? The ones you are viewing. Thus, it is optional because you can leave that material and still perform a side bend. For a side bend you need it cut at 5/16" which is the other direction. We are looking at one 'side' of the coupon. Either the side in the view or the opposite side will be the stretched side going into the guided jig. But the top and bottom are not relevant. So, optional.
As Al stated, though slightly different context, you can see more about the integrity by leaving the reinforcement there on both the face and the root. If all is good it will bend just fine. If not, BREAK/BUSTED! Now, it is optional because they are leaving it to the test provider. Some equipment may not handle the specimen well if not squared off either because of size restrictions or ability to handle the stress of the extra material. And, we are not talking about a face and root bend, this is a side bend of the 6GR coupon. If it were a face and/or root I would still stand on the wording stated previously, "shall be removed flush with the surface of the specimen." (seen in Figure 4.12 for face and root bend specimens)
Keep the differences in mind between face/root and side bends as well as plate vs 6GR Pipe. Different materials and test preparation.
He Is In Control, Have a Great Day, Brent